<!DOCTYPE html>
<html lang="en">

<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<meta http-equiv="X-UA-Compatible" content="ie=edge">
	<title>翻牌对对碰</title>
	<style>
		div{
			width: 14vw;
			max-width: 70px;
			height: 14vw;
			max-height: 70px;
			border-radius: 10px;
			background: skyblue;
		}
	
	
	</style>
</head>

<body>
	<div ></div>
</body>

</html>